Tire-bolt wrench



Patented June 6,1899.

T., E. STUCKFURD.

TIRE BOLT WRENCH.

(Application led Jan. 13, 1899.]

tNo Model.)

UNrrn STATES VTHOMAS E. STOOKFORD, OF LEESVILLE, CALIFORNIA, ASSIGNOR'OF ONE- PATENT OFFICE.

HALF TO CHARLES E. STOCKFORD, OF SU-LPHUR CREEK, CALIFORNIA.

TIRE-BOLT WRENCH.

SPECIFICATION forming part of Letters Patent No. 626,446, dated J' une 6, 1899.

Application liled January 13, 1899 Serial No. 702,025. (No model.)

T0 @ZZ whom it ntfty concern:

Be it known that I, THOMAS E. STOCKFORD, a citizen ofthe United States, residing at Leesville, county of Colusa, State of California, have invented an Improvementin Reversible Tire-Bolt lVrenches; and I hereby declare the following to be a full, clear, and exact description of the same. y

My invention relates to a device which is especially designed for the securing and releasing of nuts upon tire and other bolts.

It consists in the parts and the constructions and combinations of parts hereinafter described and claimed.

Figure l is a view of my wrench. Fig. 2 is a longitudinal section of the same. Fig. 3 is a face view. Fig. 4: shows a modification for operating the wrench. Fig. 5 is a detail View of the nut-socket.

Bolts which are used about carriages, such as tire-bolts and those holding other parts of the ironwork together, are secured by nuts, which must screw on very tightly and loe locked to prevent their being jarredoff by the constant vibrations of the carriage.

The object of my invention is to provide an apparatus for applying or removing such nuts and a means for adjustably holding the device with relation to the direction of the nut and bolt and means for applying the power at points where it is difficult to conveniently operate an ordinary wrench.

In the present case I have illustrated my invention as applied to a device to be used for applying and removing nuts for tire-bolts.

In the drawings, A represents the felly of a wheel, and .B the tire. The tire is held upon the felly by means of bolts C, which usually have a conical head fitting into a corresponding countersink in the outer periphery of the tire. The inner end of the bolt is screwthreaded and projects through the felly sufficiently to receive the nut, which must be screw-threaded to hold it in place. After it is screwed up tight the end of the bolt may be upset sufficiently to prevent the nut being jarred off. When it is desired to remove the nut after considerable use and when the bolt may have become .rusted, it requires considerable power and a convenient means for applying it, so as to turn the nut upon the bolt.

D is a chain bered head, and E is a shank extending through a hole made axially in the rear end of said head. The front end of this shank has a circular socket F formed in it of sufficient size to receive the correspondinglyshaped inner end of the nut-Wrench G. The outer end of this wrench has a rectangular opening g, adapted to fit the nut to be turned.

The rear end of the wrench Gr has an eX- tension G', and a correspondingly-shaped hole .H is made in the bottom-of the socket F.

Within this hole is a spring Il', which presses against the extension G', and thus acts to press the wrench outwardly within its socket.

Around the periphery of the wrench is made a flange I, and a screw J passes through the side of the head D, so that its point enters the socket of said head just outside ofthe flange I. This screw-point prevents the spring from forcing the wrench G out of its socket, but allows it to be turned by the engagement `of the square extension Gwith the socket H in the front of the shaft E.

The spring H allows the wrench to yield and' move backwardly when pressure is brought upon the apparatus, so that while the socket g always embraces and lits the nut there is no direct pressure upon the nut by any locking of the apparatus to the place where it is to be used, which will be hereinafter described. v

By retracting the screw J the wrench vor socket-piece G can be easily removed from l its place in the head D, and any other one may be introduced having the same exterior diameters, but having the interior socket g made of a size to suit any other nut, thus making. the apparatus useful for nuts of various sizes within its province of application.

In order to turn the wrench-piece G, the shaft E is turned by any suitable mechanism. It may be turned by a beveled gear, as shown at K; but I have shown as a preferred method the double ratehets L L, each fitting upon a rectangular portion M of the shaft E', and there are intermediate circular portions of said shaft which are turnable within the arms or forks N of the hand-levers O, the ratchetwheels fitting loosely between these forks, so that the levers y may be turned about the cylindrical portions of the shaft, while the IOO ratchet-wheels remain iixedthereto by reason of the rectangular portion upon whichthey iit. In order to Operate these ratchets L, I employ the pawls P, pivot-ed, as shown, and each having a point which may engage with the teeth of the ratchet L. These pawls, are pivoted in pairs, one `upon each side of the ratchet, so that one' may be engaged with the This is eifected as follows: Between the ends of the pawls, which `are above the pivot or yzo . fulcrum pins, is a spring Q, which constantly presses against the inner ends of thesepawlylevers and forcesv them apart, the tendency bei-ng to force both of them into contact with the ratchet and upon opposite sides.l

` R Vis a screw passing through the upper part ofthe fork in which the ratchet-wheels are turnable/and having milled heads orother suitable turning device Rj upon the projecting ends. These milled heads are of such in linewith the spring Q. When, therefore, thevv screw R is turned so that the upper end of one ofthe pawl-levers is pushed in, the

upper end of theother pawl-lever, being corforced loutwardly by the spring Q and the `point will be allowed to engage with the ratchet.' It is lthus only necessary to turn the screw R and advance it through the'fork in one direction or the other to disengage one pawl and allow the other to engage with the ratchet, and the operation of the device is thus reversed. Then by moving the lever-arm O the pawl which engages the ratchet-teeth will act to revolve the ratchet and with it the shaft v E, thusturning the nut-wrench and advancing thenut in either direction.

1in orderkto make the operation as nearly` l continuous as possible, -I have shown two of- 'l ythe ratchets L and two of the lever-arms O with the intermediate connections, so that one may be moved in one direction while the other is; being moved in the opposite direction, and

' the rotation of the shaft and the nut-wrench being secured to or a continuation of the arm T,and this arm Tis swiveled upon a standard U, which projects at right angles from The pointof the screw the head D, as shown. S is thus vbrought in line with the head of the bolt C, and by turning the hand-wheel which operates the screw the point is caused't'o press upon the head of the bolt, forcing itiirmly into its seat and locking it so that it will not turn by Jreason of the frictional contact, and when thus held it allows the nut to be turned `upon the inner end by the mechanism previousl-y described.

The object of swiveling the arm T is to allow the screw S to be brought into linegwith the bolt, thehole for which is often bored not exactly radial through the tire and felly, and

i theswivel allo.ws the screw to be adjusted to suit the line of the bolt, which is important.

In order to protect the felly from being .Dwill be pressed against the inner convex head of the -felly and the device will be firmly held in position.

It will be manifest that this device may be ,applied to the reaches and'at other points where there are bolts to be turned which are `diameter that they will contact with either Q one or the other of the'pawl-levers P at a point difficultof access.

As the levers work interior to the telly and `between the spokes it allows of their being operated alternately and the nut turned in ,either direction with considerable rapidity. point P of the pawl will be lifted o`ut of the 'lineof the teeth of the ratchet L', while the Having thus described my invention, what I I claim as new, and desire to secure by Letters Patent, isrespondingly relieved of pressure, will be 1. A wrench and bolt-holder consisting of a hollow head adapted to t over the inner end a shaft axial in line with the nut with means for turning said shaft and a yielding connection whereby the motion of the shaft is transt mitted to the nut-wrench.

2. In a wrench and bolt-holder, a hollowl head, swiveled arm, and screw adaptedto tit the part and holdthe bolt, a shaft extending ,into vtherear of the head having a rigidl enlarged chambered head with a rectangular `central socket, an independent nut-wrench fitting in the chambered head having a rectangular extension from the rear which iits `and engages the corresponding socket in the shaft-chamber, and having a socket in front adapted to engage and turn the nut, a spring 'fittingthe socket in the shaft-chamber acting to press the nut-wrench forward and a means engaging the nut-wrench to limit its forward motion.

3. In a wrench and bolt-holder, clamping and holding devices, a turnable shaft having a rigid chambered head provided with. a

'marred by the application of this device, I

Ioo

socket an inde endent s rinressed and flanged nut-Wrench adapted to t the chamber in the head and having a part to t said socket, and a stop in the path of the ilange on the Wrench, for limiting the forward 1n ovement of said wrench.

4. In a wrench and bolt-holder of the character described,a head havin g transverse concaved extensions adapted to fit the inner periphery of a felly, an arrn swiveled to said head and curved over the exterior of the tire, and a screw passing through the outer end of said arm and adjustable therewith to stand in line with and lock the bolt and at the same time clamp the device upon the wheelrim.

5. In a wrench and bolt-holder of the character described, the head, swiveled yoke and locking-screw, the independent springpressed nut-wrench iitting in a chamber in the head, a socketed shaft tting a corresponding projection upon the rear of the wrench and adapted to turn it, and a double pawl-and-ratchet mechanism whereby the shaft is advanced continuously by alternate movements of the ratchet-levers.

6. In a device of the character described, the wrench and bolt-holder having the nutturning socket, a shaft and pawl-and-ratchet mechanism as shown, in combination with a spring acting upon the oppositelyplaced pawls of each ratchet and the screvsr movable transversely and having heads which press upon either one or the other of the pawls to disengage it from the ratchet While allowing the opposite one to be engaged therewith.

7. In a bolt-holding wrench of the charaeter described, a socket-wrench fitting the nut, a shaft with which the wrench is engaged and by the turning of which the nut is advanced upon the bolt, ratchet-wheels fixed upon the shaft, pivoted pawls, the points of which engage with opposite sides of the ratchet and a single spring acting to normally press both pawls into simultaneous engagement with the ratchet, in combination with a transverselymovable screw having heads upon the ends which alternately engage one or the other of the pawls and lift the point out of engagement with the ratchet and allow the other to remain in engagement therewith.

, In witness whereof I have hereunto set my hand.

THOMAS E. STOCKFORD 

